<!-- this is Back to Top Button -->
<button onclick="topFunction()" id="BackToTop" title="Go to top" style="display: block;"><i class="fas fa-angle-double-up"></i> Top</button>
<!-- link to backtotopbtn.css -->
<link rel="stylesheet" href="{{site.url}}{{ site.baseurl }}/assets/css/backtotopbtn.css">